A vehicle-mounted electronic equipment power supply self-startup apparatus

The utility model relates to a vehicle-mounted electronic equipment power supply self-startup apparatus comprising a vibration status detection module and a power supply switch module which are connected. The vibration status detection module comprises a resistor R1, a vibration switch S1 and a capacitor C1. One end of the capacitor C1 is connected to one end of the resistor R1 through the vibration switch. The other end of the capacitor C1 is grounded. The other end of the resistor R1 is connected to a power supply VCC. The power supply switch module comprises a voltage comparater U1 and a switch tube Q1. An anti-phase input end of the voltage comparater is grounded. A normal input end of the voltage comparater is connected to one end of the capacitor C1. An output end of the voltage comparater U1 is connected to a grid electrode of the switch tube Q1. A drain electrode of the switch tube Q1 is connected to the power supply VCC. A source electrode of the switch tube Q1 is connected to one end of a load. The other end of the load is grounded.The vehicle-mounted electronic equipment power supply self-startup apparatus of the utility model is simple in structure and stable in function. The vehicle-mounted electronic equipment power supply self-startup apparatus does not depend on an internal circuit and works independently, so that the utilization rate of electric quantity of a battery is further raised.